RO61840A - - Google Patents
Info
- Publication number
- RO61840A RO61840A RO6968072A RO6968072A RO61840A RO 61840 A RO61840 A RO 61840A RO 6968072 A RO6968072 A RO 6968072A RO 6968072 A RO6968072 A RO 6968072A RO 61840 A RO61840 A RO 61840A
- Authority
- RO
- Romania
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/14—Control devices for the reciprocating piston
- B25D9/145—Control devices for the reciprocating piston for hydraulically actuated hammers having an accumulator
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/18—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid
- B06B1/183—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency wherein the vibrator is actuated by pressure fluid operating with reciprocating masses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Reciprocating Pumps (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD15319171 | 1971-02-18 | ||
| DD15870871A DD97142A2 (ro) | 1971-11-02 | 1971-11-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO61840A true RO61840A (ro) | 1977-06-15 |
Family
ID=25747377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO6968072A RO61840A (ro) | 1971-02-18 | 1972-02-04 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2206391A1 (ro) |
| FR (1) | FR2125902A5 (ro) |
| RO (1) | RO61840A (ro) |
| SE (1) | SE368914B (ro) |
-
1972
- 1972-02-04 RO RO6968072A patent/RO61840A/ro unknown
- 1972-02-11 DE DE19722206391 patent/DE2206391A1/de active Pending
- 1972-02-14 FR FR7204872A patent/FR2125902A5/fr not_active Expired
- 1972-02-17 SE SE193372A patent/SE368914B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE2206391A1 (de) | 1972-08-31 |
| FR2125902A5 (ro) | 1972-09-29 |
| SE368914B (ro) | 1974-07-29 |